=========================================================================================== Group Migration Script v1.1 –> https://github.com/timmcmic/DLConversion/blob/master/src/DLConversion.ps1 =========================================================================================== In script version 1.1 we introduced a new feature to control how the group is provisioned in Office 365. When a group is create on-premises the group type can be established as either distribution or security. The group type can be dynamically changed through Active Directory Users…

=========================================================================================== Group Migration Script v1.0 –> https://github.com/timmcmic/DLConversion/blob/master/src/DLConversion.ps1 =========================================================================================== Distribution groups are an excellent way to organize multiple recipients under a single address. Like Exchange Server on-premises, Office 365 supports mail-enabled distribution groups, security groups, and dynamic distribution groups. When Active Directory and Exchange are used on-premises, distribution groups are typically created in the on-premises Active…

In Office 365 an Exchange related object can be replicated from the on premises Active Directory to Azure Active Directory and then forward synchronized into the Exchange Online Active Directory. In most cases the objects synchronized into the Exchange Online Active Directory represent mail enabled objects. User accounts are unique in that they are replicated…

In Exchange Online an Office 365 Group ( Unified Group / Modern Group ) allows for a new level of team collaboration. Office 365 Groups are created directly in Exchange Online and Azure Active Directory. This makes them cloud only objects. The membership and attributes of these objects are maintained directly in Office 365. There…

In Office 365 cloud only groups can have their membership managed through the Office 365 portal or through the Azure Active Directory powershell commands. As with on premises Active Directory multiple group types can be created and managed. You can also create direct user membership in groups as well as nested group membership. I recently…

In some previous blog posts I have outlined conditions where users may have inadvertently had a mailbox both on premises and in the cloud at the same time. The following links outline these scenarios and how to attempt to proactively identity users that may fall in this condition. https://blogs.technet.microsoft.com/timmcmic/2018/04/10/office-365-detecting-and-preventing-duplicate-mailboxes-between-on-premises-and-exchange-online/ https://blogs.technet.microsoft.com/timmcmic/2017/09/10/office-365-users-have-both-a-cloud-and-on-premises-mailbox/ https://blogs.technet.microsoft.com/timmcmic/2018/04/09/office-365-licensing-mail-users-results-in-mailbox-objects/ With an understanding of…

In Office 365 migration batches are the preferred method of establishing mailbox migrations to Office 365. When a migration batch is established the users included in the batch are represented as migration users within the service. Within the context of each migration user is where we track the migration process. One of the data points…

In the last few weeks I have worked several escalations from customers inquiring about inconsistencies with the mobile phone attribute. In almost all cases inconsistencies were noticed in the Exchange Online contact card where mobile phone listed did not match on premises. When directory synchronization is enabled on an Office 365 tenant a set of…

In order for an Exchange Online mailbox to exist in Office 365 it must be attached to an Azure Active Directory object. In Exchange Online we record the object ID for the Azure Active Directory account as the external directory object id of the mailbox. PS C:\> Get-Mailbox tmcmichael | fl name,externalDirectoryObjectID Name : Timothy…